...but I seriously doubt that was ever the intention and the more likely scenario is that the entire carcass was discarded and I simply cannot condone the needless destruction of life for no greater purpose than entertainment.

I don't condone such waste either, but the article doesn't say what they did with the carcass. I doubt they just shot it and left it. Safari Club International arranged the trip. They no doubt arranged proper disposal of the bear if the family didn't want it.